Robbie factored the following expression incorrectly. Identify his mistake, then write a few sentences
explaining to him how to fix it.

Answer:

B. Cube and E. hexahedron

Step-by-step explanation:

Icosahedron are made of triangles, cubes are made of squares, tetrahedron are made of triangles, octahedron are made of triangles, hexahedron are made of squares, dodecahedron are made of pentagons.

i hope it helps! Have a great day!

Sandra~

Answer:

 A. see below for a graph

 B. f(x, y) = f(0, 15) = 90 is the maximum point

Step-by-step explanation:

A. See below for a graph. The vertices are those defined by the second inequality, since it is completely enclosed by the first inequality: (0, 0), (0, 15), (10, 0)

__

B. For f(x, y) = 4x +6y, we have ...

 f(0, 0) = 0

 f(0, 15) = 6·15 = 90 . . . . . the maximum point

 f(10, 0) = 4·10 = 40

_____

Comment on evaluating the objective function

I find it convenient to draw the line f(x, y) = 0 on the graph and then visually choose the vertex point that will put that line as far as possible from the origin. Here, the objective function is less steep than the feasible region boundary, so vertices toward the top of the graph will maximize the objective function.

The vertex points of this system are (0, 0), (0, 15) and (10, 0). And the maximum point of the system is 90.

At least two linear inequalities in the same variables make up a system of linear inequality in two variables. The graph of a linear inequality is the graph of all solutions to the system, and the solution of a linear inequality is the ordered pair that resolves all inequalities in the system.

The given system:

2x+y ≤20

3x+2y ≤30

x, y ≥0

To find the vertex points,

first, we take inequalities in slope-intercept form.

y = 20 - 2x

And y = -3x/2 + 15

x, y ≥0

From that we interpreted the graph.

And the graph is given in the attached image.

A:

Check out the graph below. Given that the first inequality entirely encloses it, the vertices are those defined by the second inequality: (0, 0), (0, 15), (10, 0).

B:

We have objective function f(z) = 4x + 6y

To find the maximum point:

Substituting (0,0) to the function,

4x + 6y

= 4(0) + 6(0)

= 0

Substituting (0,15) to the function,

4x + 6y

= 4(0) + 6(15)

= 0 + 90

= 90

Substituting (10,0) to the function,

4x + 6y

= 4(10) + 6(0)

= 40 + 0

The maximum point is 90.

Therefore, (0, 0), (0, 15) and (10, 0) are the vertex of the system. And the maximum point is 90.

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Answer:

  C. N=300; I%=6.7; PV=-175000; PMT=; FV=0; P/Y=12; C/Y=12; PMT:END

Step-by-step explanation:

To find the payment on a loan, a TVM solver needs the Present Value (PV) to be the loan amount, the Future Value (FV) to be zero, and N to be the actual number of payments (25×12 = 300).

Most solvers will take I% to be the annual interest rate. (An HP-12C financial calculator uses the monthly interest rate.)

The set of values needed for finding the monthly payment on this $175,000 loan at 6.7% are listed in choice C.

__

Additional comment

The sign of the cash flow is usually negative for amounts paid, and positive for amounts received. Here, the answer choices show the loan amount to be negative and the payment amount to be positive. We ordinarily expect to receive the loan amount and pay the payments. By the above criteria, the signs are reversed in this problem from what we usually expect.

The scenario that could be modelled with an exponential function is when Tim adds $10 to his savings account each week.

A function assigns the value of each element of one set to the other specific element of another set.

As we know that a continuous compounding function is an exponential function. Therefore, we need to find the situation where the principal amount is invested for an infinitely long time.

A.) Since the amount is invested and a certificate of deposit is taken the amount will be invested for a fixed period of time. Thus, this is not a continuous compound function.

B.) The amount put into the account and taken out of the account varies for each term. Thus, this is not a continuous function.

C.) As in Jaylon's account the money is reduced by $125 every month, therefore, at a certain point, it will become zero. Thus, this is not a continuous compound function.

D.) As Tim adds $10 to his saving account every month, and there is no time specified, also the account will be always positive. Thus, this is a continuous compound function.

Hence, the scenario that could be modelled with an exponential function is when Tim adds $10 to his savings account each week.

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[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

The given triangle is a right triangle, with one of the acute angle measuring 45°

let's calculate x ~

[tex]\qquad \tt \dashrightarrow \:x + 45 + 90 = 180[/tex]

[tex]\qquad \tt \dashrightarrow \:x + 135 = 180[/tex]

[tex]\qquad \tt \dashrightarrow \:x = 180 - 135[/tex]

[tex]\qquad \tt \dashrightarrow \:x = 45 \degree[/tex]

So, tan x is :

[tex]\qquad \tt \dashrightarrow \: \tan(x) = \tan(45 \degree) [/tex]

[ since x = 45° ]

[tex]\qquad \tt \dashrightarrow \: \tan(x) = 1[/tex]

Answer: 11

Step-by-step explanation:

Answer:

Correct Answer: (-3,4) is located in the G region!!

Step-by-step explanation:

This is simple graphing but using regions.

Each region is on a coordinate.

________________________________________________________

There are 4 Quadrants representing each region.

(x, y) is the Quadrant 1 (Top Right) which has every coordinate positive.    

(-x , y) is Quad. 2 (Top left) The X coordinate is negative while the y is positive.

(-x , -y) is Quad. 3 (Bottom Left) Both axis are negatives

(x , -y) is Quad. 4 (Bottom Right) The X-axis is positive but the Y is negative.

________________________________________________________

Your question asks for what region (-3,4) is at.

We know that the location of this coordinate is in Quadrant 2 because the x is negative.  (Top Right)

Now, you need to go 3 to the left of the x-axis.

Then, go 4 up the y-axis.

Your region for this coordinate is "G"

Answer:

I dont know

Step-by-step explanation:

Sry but i dont know and it wont let me click out of add my answer thing

According to the given figures of triangle.. The value of x is 2.

Answer:

x = 3

Step-by-step explanation:

assuming the triangle is right.

using Pythagoras' identity

(x + 2)² = x² + 4²

x² + 4x + 4 = x² + 16 ( subtract x² from both sides )

4x + 4 = 16 ( subtract 4 from both sides )

4x = 12 ( divide both sides by 4 )

x = 3

Answer:

21

Step-by-step explanation:

10*7 = 70

3*7 = 21

Answer:

2.72 ml

Step-by-step explanation:

4 lb = 1814.37 gm

1814.37 gm  * .09 mg/gm  / ( 60 mg/ml) = 2.72 ml

Step-by-step explanation:

volume = height × square base

1500 = 15 × square base

square base = 100

lenght = 10

Answer:

To get the diameter we need to invert the equation: Cπ=D. If we put in all the numbers now we get that: 153,14=4,777070...

Step-by-step explanation:

Answer:

Step-by-step explanation:

We need to multiply each dimension by 3.

The base was 3*15 = 45

and the height = 3*9 = 27.

Answer:11c

Step-by-step explanation:

Answer:

Its going to be 79 degrees still because it doesnt change.

Step-by-step explanation:

.

Answer:

A, She added before multiplying.

Step-by-step explanation:

First, start off by using GEMDAS.

Grouping

Exponents

Multiply

Divide

Add

Subtract

You work from left to right - so you obviously divide first, which Amanda did successfully. Then, you multiply, which is exactly where Amanda went wrong. She was supposed to multiply before adding the 3 with 4.

Not sure if this made sense,

Answer:

IT will lie in the quardant 1

because  want you to plot a point for "July 1963 was 63 degrees Fahrenheit" so that's in the positive temp region

so the correct option will be 1 and it is

D

Step-by-step explanation:

hope this helps

Answer:

16.2 is the volume i hope i helped u

Answer:

B) 25.5 m²

Step-by-step explanation:

The formula to find the area of a trapezoid: 1/2 x (a + b) x h, where a and b are the parallel lines and h is the height.

1) Input the values into the formula, and solve it.

= 1/2 x (5 + 12) x 3

= 1/2 x 17 x 3

= 1/2 x 51

= 25.5

Answer:

B

Step-by-step explanation:

A = (1/2)(3)(5 + 12)

= (1/2)(3)(17)

= (1/2)(51)

= 25.5 m^2

Answer:

System A: x = 2, y = 1

Points: (2, 1)

System B: x= 2, y = 1

Points: (2, 1)

Step-by-step explanation:

Answer:

Step-by-step explanation:

Given:

Conversion: 1 yard = 3 feet = 36 inches

Use the unitary method and solve:

Thus, Dwayne bought 432 inches of wrapping paper.

Answer:

c) 5 boxes 4 donuts remain.

pls give brainlyist

Step-by-step explanation:

Answer:

C. 5 boxes with 4 doughnuts left over

Step-by-step explanation:

A baker made 64 doughnuts at his bakery on Monday.

The baker wants to put his doughnuts into boxes. Each box holds 12 doughnuts. What is the total number of boxes the baker can fill, and the total number of doughnuts he will have left over?

Given that the baker has 64 doughnuts and each box holds 12 doughnuts, how many boxes can he fill and how many will he have left over?

To find this, we need to divide 64 by 12 using long division.

*View the attached picture*

Hope this helps!

Answer:

9 to 6 is the answer to make a fruiter jam

Step-by-step explanation:

The ratio that makes a fruiter jam is 9:6

The quantitative relation between two amounts shows the number of times one value contains or is contained within the other. for example-"the ratio of computers to students is now 2 to 1"

Given here: Macy's mother uses 6 tablespoon of sugar to 8 tablespoon of raspberries.

Original ratio is 4/3

Clearly only the option 9/6=3/2 is greater than 4/3

Thus 9:6 is the required ratio.

Hence, The ratio that makes a fruiter jam is 9:6

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Your question is incomplete. The complete question :

Macy's aunt makes raspberry jam using 6 tablespoons of sugar and  9 tablespoons of raspberries. Macy wants to make a fruitier tasting jam. # Which ratio of tablespoons of raspberries to tablespoons of sugar would make a fruitier jam?

9 to 10

4 to 10

9 to 6

Answer:

D. [tex]\frac{-19}{74} +\frac{71}{74} i[/tex]

Step-by-step explanation:

[tex]\frac{-8+3i}{5+7i} (\frac{5-7i}{5-7i} )[/tex]

[tex]\frac{-40+56i+15i-21i^2}{25-35i+35i-49i^2}[/tex]

[tex]\frac{-40+71i-21(-1)}{25-49(-1)}[/tex]

[tex]\frac{-40+21+71i}{25+49}[/tex]

[tex]\frac{-19+71i}{74}[/tex]

[tex]\frac{-19}{74} +\frac{71}{74} i[/tex]

I hope this helps and God bless!

Answer:12 gallons

Step-by-step explanation:

There are 16 cups in a gallon 16 cups =1 gallon so 192/16 is 12

Answer:

12 gallons

Step-by-step explanation:

To convert cups to gallons you must divide the volume (192) by 16.

192/16 = 12

12 gallons

Hope this helps:)

Answer:

An Isosceles trapezoid

Step-by-step explanation:

The shape is triangle.

In Euclidean geometry, a trapezoid is a convex quadrilateral by definition. The bases of the trapezoid are the parallel sides. If the remaining two sides are parallel, they are referred to as the legs (or lateral sides); if not, the trapezoid is a parallelogram, and there are two pairs of bases.

Given a trapezoid,

number of vertex trapezoid have = 4

one less vertex than trapezoid = 4 - 1 = 3

number of sides trapezoid has = 4

one less side than trapezoid = 4 - 1 = 3

the shape which has 3 sides and 3 vertex is triangle.

Hence the new shape is triangle.

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Answer:

18t >= 78

Step-by-step explanation:

Not sure if there's an equals sign in the problem that you were given, but there should be. The 18 in the inequality stands for the hourly wage. The t stands for hours worked. 18(wage) x t(hours) has to be greater than or equal to 78 in order for Martin to at LEAST $78 per day. :)